Pounding forces cause severe damage to bridges when subjected to strong earthquake ground motions. Although the pounding force has been considered in previous research on bridges, the effect of frequency-dependent soil-structure interaction (SSI) on seismic pounding has not been considered in most of the studies. Therefore, the present paper aims to study the effect of frequency-dependent SSI on seismic pounding in RC bridges because it has been observed from the literature that the stiffness and damping of soil supporting the structure depend on the frequency of earthquake excitation. Actual earthquake records have been considered, and the results obtained using frequency-dependent SSI are compared with those obtained considering static (frequency-independent) SSI. Analyses results show that consideration of the more refined frequency-dependent SSI model leads to an increase in the natural time period of the bridge-foundation-soil system, resulting in a reduction of pounding force in the bridges. It is also observed from the displacement time history analysis of the contacting lumped masses that the displacements in some cases increase while in other cases decrease for a particular gap size. The study investigates the effect of static and frequency-dependent SSI on the maximum displacement and maximum pounding forces for different gap sizes for soft soil conditions.